Asus ZenBook 14X User Manual page 29

Thunderbolt™ 4/Power Delivery combo port
The Thunderbolt™ 4 port is compatible with USB Type-C®
standards, and provides a transfer rate of up to 40 Gbit/s for
Thunderbolt™ 4 devices. Connect your Notebook PC to a
DisplayPort, VGA, DVI, or HDMI external display and experience
high-resolution display features via Intel® Thunderbolt™
technology. Insert the bundled power adapter into this port to
charge the battery pack and supply power to your Notebook PC.
NOTE: Transfer rate of this port may vary per model.
IMPORTANT!
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It may take longer to fully charge your Notebook PC through
a low-voltage power source.
To prevent any damage, use only power sources rated
20V/5A to charge your Notebook PC with the USB Power
Delivery combo port. For more information, consult an ASUS
service center for assistance.
Notebook PC E-Manual